[考古] 中原100
2
∫ 2+(sin X^3)/(1+cox^2 X^2) dx=?
-2
lim (sin X^2-sin^2 X)/sin^4 X =?
x->0
1 1-y
∫∫ 1/(1-xy)dxdy =?
0 0
-3
∫√(x^2-9)/x dx =?
-6
然後我想問第4題
如果設X=3secΘ 這樣可以解嗎?
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